The Canine Diversity Project
THE CANIDAE

A. Selected Breeds of Canis familiaris

Note: The breeds listed here should not be regarded as having more or fewer problems with genetic diversity or disease than those not listed. Those familiar with other breeds are invited to submit appropriate links.
Afghan Lhasa Apso
Akita Portuguese Water Dog
Border Collie Poodle (Diversity in Poodles)
Boxer Rhodesian Ridgeback
Caucasian Ovcharka Saluki
Chinese Shar-Pei Shetland Sheepdog
Chinook Shiloh Shepherd
Clumber Spaniel Tibetan KyiApso
Golden Retriever Tibetan Mastiff
Icelandic Sheepdog Wire-Haired Pointing Griffon

North American Mixed Breed Registry

B. Other Canids - General

Wolves Coyotes Dingos
Molecular evolution of the dog family
Overview of the Canidae   (including extinct species)

C. Endangered species

African Wild Dog
Dhole   [Asiatic Wild Dog]
Ethiopian Wolf
Iberian Wolf
Mexican Wolf
Maned Wolf
Red Wolf   [AZA]
Red Wolf   [North Carolina Zoo]

D. Reintroduction projects

The Grey Wolf
The Mexican Wolf
The Swift Fox
(latest updates)
(latest updates)
 

E. Additional information on endangered species

Defenders of Wildlife Bagheera
AZA Conservation Programs AZA Species Survival Plans
Introduction to a Species Survival Plan

Also worth visiting: The Golden Lion Tamarin captive breeding page.
Be sure to take a look at the "Pedigree Game".